Post-traumatic acalculous cholecystitis on a neurosurgical service.

Post-traumatic acalculous cholecystitis is a potentially lethal complication that may develop in patients during hospitalization for trauma. Three case reports illustrate that obscuration of many early diagnostic symptoms and signs may make this complication particularly treacherous in the neurosurgical patient. Suspicion should be aroused by unexplained fever, leukocytosis, elevated serum bilirubin and alkaline phosphatase values, and developing intolerance to oral or tube feedings. There may be a rapid progression to signs of an acute abdominal condition. Symptoms are most likely to occur 1 week to 1 month after the episode of trauma. Patients of all ages are susceptible. Diagnosis is best confirmed by noninvasive iminodiacetic acid hepatobiliary scanning accompanied by ultrasound or abdominal computed tomographic scanning. The treatment of choice is emergency cholecystectomy. The cause is most likely multifactorial and is probably related to hypotension, sepsis, or biliary stasis with subsequent cystic duct obstruction. Although this disease is rare, its incidence is apparently increasing, and a high index of suspicion is warranted in the neurosurgeon involved in the care of the biliary tract disorder.